同位素2012，Vol.25Issue(2)：98-103,6.
北极黄河站邻近湖泊沉积物有机碳同位素记录及其气候信息
Characters of the Organic δ13C and Its Climatic Information in Sediment Cores of the Lakes Nearby the Arcitic Yellow River Station of China
摘要
Abstract
Arctic is favored by researchers due to its sensitivity and feedback to Global Climate Change, and the organic δ13 C record of lake sediment is a key indicator for the environmental climate change. The sedimentary rates and δ13 C of two sediment cores (No. 1 and No. 2), collected from two lakes near the Arctic Yellow River Station of China during July to Aug of 2007, were determined in order to investigate the climate change of the Arctic during the past centuries. The sedimentary rates, determined with 210 Pb method, of sample No. 1 and sample No. 2 were 1. 05 mm/a and 0. 91 mm/a, respectively, and the vertical dis tribution of organic δ13C of two sediment cores have similar trends during the same period.The results show that the temperature at the Arctic Yellow River Station of China during the last three centuries was unsteady, and was alternating with a "lower-higher-lower" process.关键词
有机13C/北极黄河站/湖泊沉积物/气候信息Key words
organic d13C/ the Arctic Yellow River Station of Chinas lake sediment/ climatic information分类
天文与地球科学引用本文复制引用
何建华,余雯,陈立奇,门武..北极黄河站邻近湖泊沉积物有机碳同位素记录及其气候信息[J].同位素,2012,25(2):98-103,6.基金项目
中国极地科学战略研究基金"黄河站邻近湖泊沉积物中有机碳同位素研究及其古气候环境意义初探"(20070221) （20070221）
